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结合开源数据集进行电影推荐。推荐算法有:逻辑回归;UserCF ; ItemCF

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` if occ in occupation2Id.keys(): # 如果在其中 occ = occupation2Id.get(occ) # else: # 否则,重新生成一个值 occupation2Id[occ] = len(occupation2Id) # 构建一个occupation -> id 的字典 occ = len(occupation2Id) - 1 # 一个新的职业` 1、这里为何是...